Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
  • H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
  • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]

Definitions

• the present invention relates to the field of energy storage systems, which are disposed between an energy consuming load and an energy source, and in particular an intermittent energy source, such as wind turbines, solar panels. , hydraulic or thermal energy, etc., the availability of which, in terms of time and / or volume, is very variable and not really predictable.
• Such a storage device is for example described in FR 2 780 827 A1, which proposes to isolate a battery in order to charge it completely before reintroducing it into the load supply circuit made up of 3 batteries in parallel.
• the prototype of this previous device only improved the energy recovery rate by 10% and the battery life by 20%.
• FIG 3 shows a view of an energy production and consumption platform in one embodiment of the invention
• FIG 4 shows a view of an energy production and consumption platform in one embodiment of the invention.
• the advanced energy storage system 10 is suitable on the one hand to store electrical energy delivered by the source 2 and on the other hand to supply electrical energy to the consuming load 5.
• Bat 1, Bat 2 and Bat i do not necessarily have the same capacity. However, to simplify the experimental model, it is simpler to have 2 or even 3 batteries of the same capacity to simplify the calculation of the charging and discharging times which must be similar to ensure the switchovers from one DESE to another. .
• the Bat i can be a super-capacity or a fuel cell (hydrogen) respectively to provide power (pulse) and extension autonomy (secondary source for permanent energy)
• the operation of the advanced energy storage system 10 is controlled so as to trigger a charge of any one of the DESEs 11, 12, 13 only if said DESE is in a minimum state of charge - in other words, "a DESE during discharge must not be charged ”, ie the advanced storage system prohibits triggering of charging of a DESE during discharge.
• the Bat 1, Bat 2 or Bat i battery power control is a current and voltage (capacity) supply control.
• the system thus makes it possible, whatever the type of DESE, to offer an energy availability of 80% of the capacity, without calling into question the lifespan of the DESEs considered.
• the operation of the advanced energy storage system 10 is controlled by the control unit 16, via the upstream 17 and downstream 18 switching blocks, so as to temporarily suspend the load phase of the DESE during load, in the case considered the DESE 11 (Bat 1), however not yet fully charged, to switch the energy coming from the source 2 to the input of a DESE (here DESE 13, Bat i) not in phase of dump ; such an arrangement can for example be triggered when the advanced energy storage system 10 (for example according to data supplied to it, or an analysis carried out by the weather forecasting device 10) compares the energy production to come in a next period T and the state of charge of the DESE 11 and determines that this production of energy to come in this next period is much greater than what the DESE 11 then being charged will not be able to store in the same time: for example if the DESE 11 is in a floating type charging phase (this state can last several hours) while during these same hours, strong sunshine or a lot of wind is expected.
• the advanced energy storage system 10 for example according to data supplied to it, or
• the present invention thus offers a solution making it possible to decorrelate the current production of energy from the current consumption of energy.
• the exploitation of DESE alternately and independently has the effect of promoting and improving the maximum energy recovery, supplying the load with just the necessary energy.
• the advanced storage system 110 is adapted using in particular its routing sub-blocks 170i, 1711, 180'i, 1811, 171 2 , 180 2 , 181 2 , to direct the energy coming from the source 2 ⁇ to cells 401 and 40 2 to charge them and to direct the energy discharging from cells 401 and 40 2 to the respective consuming charges 5i and 5 2 and especially from cell 401 to 40 2 vice versa via the sub- switch blocks 180'i, 1811
• FIG. 4 represents an energy production and consumption platform comprising an advanced storage system 110 '.
• This platform comprises two sub-platforms: the first sub-platform comprises a source 2'i and 2 ' 2 and a consuming load 5'i, a charger module 3'i, similar to the charger module 3, which is arranged between the source 2'i and a unit module 40'i comprising a pair of DESE 11 'i (Bat 1) and 12'i (Bat 2) whose role is similar to the Bat 1, Bat 2 shown in FIG.
• the second sub-platform comprises a source 2 ′ 2 and a consuming load 5 ′ 2 , a charger module 3 ′ 2 , similar to the charger module 3, which is arranged between the source 2 ′ 2 and a unit module 40 ′ 2 comprising a pair of DESE 11 ′ 2 (Bat 1) and 12 ′ 2 (Bat 2) whose role is similar to the Bat 1, Bat 2 shown in figure 1, and an inverter 4 ′ 2 placed before the consuming load 5 ′ 2 .
• Each of the sources 2'i and 2 ' 2 is similar to the source 2 of Figure 1.
• Each of the two consuming loads 5'i and 5' 2 is similar to the load 5 of Figure 1.
• the third DESE, the battery Bat i 13 ', used to store and share the surplus energy supplied by the sources, is shared. between the two sub-platforms.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Supply And Distribution Of Alternating Current (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=72266411

Family Applications (1)

Country Status (3)

Family Cites Families (4)

• 2020
  • 2020-05-05 FR FR2004419A patent/FR3110036B1/fr active Active
• 2021
  • 2021-05-04 EP EP21722256.1A patent/EP4147323A1/de active Pending
  • 2021-05-04 WO PCT/EP2021/061696 patent/WO2021224238A1/fr unknown

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